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What is an electric component that can detect changes in conditions such as pressure, temperature or light?

• sensor

• resistor

• senses

• current

This is a device that is used to connect or disconnect a circuit..?

• voltage

• motor

• switch

• plug

What is the unit of electricity used @ home

• J

• w

• kW

• kWh

Which one is used in power stations?

• kW

• MW

• k ohm

• Ampere

Determine the resistance value and the tolerance of the resistor: brown red black, gold

• 120 ohm, 5%

• 1000 ohm, 5%

• 1020 ohm ,10%

• none of the above

Which of the following resistor has a resistance of 4700 ohm, 5%

• yellow violet red, gold

• brown black brown, red

• brown black red, gold

• red red black, brown

What are the materials that hold electrons very tightly, and thus don't allow much static electricity to occur around them?

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Who is the Italian scientist who invented the first electric battery?

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The bulbs will give off less light when more light bulbs are added in circuit. What type of circuit is this?

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State the Ohm’s law.

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